diff --git a/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd b/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd
index 7c28fd8de3b32..fedc54d28097b 100644
--- a/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd
+++ b/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd
@@ -140,8 +140,8 @@
   </xsd:complexType>
 
   <xsd:complexType name="property" mixed="true">
-    <xsd:choice minOccurs="0" maxOccurs="1">
-      <xsd:element name="property" type="property" minOccurs="0" maxOccurs="unbounded" />
+    <xsd:choice minOccurs="0">
+      <xsd:element name="property" type="property" maxOccurs="unbounded" />
       <xsd:element name="service" type="service" />
     </xsd:choice>
     <xsd:attribute name="type" type="argument_type" />
@@ -153,8 +153,8 @@
   </xsd:complexType>
 
   <xsd:complexType name="argument" mixed="true">
-    <xsd:choice maxOccurs="unbounded">
-      <xsd:element name="argument" type="argument" minOccurs="0" maxOccurs="unbounded" />
+    <xsd:choice minOccurs="0">
+      <xsd:element name="argument" type="argument" maxOccurs="unbounded" />
       <xsd:element name="service" type="service" />
     </xsd:choice>
     <xsd:attribute name="type" type="argument_type" />
@@ -165,10 +165,9 @@
     <xsd:attribute name="strict" type="boolean" />
   </xsd:complexType>
 
-  <xsd:complexType name="call" mixed="true">
-    <xsd:choice maxOccurs="unbounded">
-      <xsd:element name="argument" type="argument" minOccurs="0" maxOccurs="unbounded" />
-      <xsd:element name="service" type="service" />
+  <xsd:complexType name="call">
+    <xsd:choice minOccurs="0">
+      <xsd:element name="argument" type="argument" maxOccurs="unbounded" />
     </xsd:choice>
     <xsd:attribute name="method" type="xsd:string" />
   </xsd:complexType>